[SWDEV-552020/SWDEV-563971] Fail memory partition tests if ASIC supports memory partitions & kmod not installed

[charis-poag-amd]

[SWDEV-552020/SWDEV-563971] Fail memory partition tests if ASIC supports memory partitions & kmod not installed
Updates:

• Now provide more details on kmod being missing and how to install.
• Cleaned up comparison logic, regardless if memory partition set/driver reload was
  successful or not.

[Copilot]

Pull request overview

This PR enhances memory partition testing in AMD SMI by adding proper validation for kernel module (kmod) availability and improving test assertions based on driver reload success. The changes ensure that memory partition tests fail gracefully when kmod is not installed on systems that support memory partitions, rather than allowing tests to pass incorrectly.

Changes:

• Added kmod installation detection to fail tests early when required tooling is missing
• Enhanced test assertions to differentiate between successful driver reloads with/without NPS mode changes
• Improved verbose logging to track memory partition state transitions throughout testing

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[eble-amd]

Because this function is called more than once, but the answer isn't likely to change between calls, consider nesting the body in a lambda function that initializes a static bool to avoid repeating the investigation, something like this:

bool IsKmodInstalled() {
  static bool installed = [] {
    // what you already have
  }();
  return installed;
}

Alternatively, if you don't actually need it to be lazy, move the check to a chosen point in the test setup code.